Patent GB-213357-A (GB)
Abstract: 213,357. Campos, F. Jan. 15, 1923. Adding and subtracting apparatus with several totalizers; displaying sub-totals. -A machine for keeping the separate accounts of a number of clients such as depositors in a bank, comprises a set of differentially positioned racks for each depositor, means for adding to or withdrawing sums from the balances thus represented, and means for indicating at any time the present state of the account. A further mechanism is also provided to facilitate the calculation of interest due to each depositor. Each account is represented by a set of racks 1 denoting units, tens &c. and these sets are disposed side by side, ten being visible in Fig. 2. The racks normally are vertical and in this position are out of engagement with long actuating-pinions 6 and are held by teeth 4 on stationary bars 5, The depositor's balance is represented by the heights at which his particular racks are standing and at the end of each day a corresponding set of pinions 60 can be drawn along the racks in one direction to accumulate the dailv balance for interest-calculating purposes. In order to ascertain the present state of an account, or to add or withdraw an amount, a bar 70 corresponding with the particular set of racks concerned is drawn out so as to incline the racks until they disengage from the teeth 4 and engage the long pinions 6. A bail member 14 pivoted at 46 is depressed through nearly a right angle until lugs 45 thereon engage projections 44 on wheels 12. This motion of the bail effects through links 47, arms 48 bevel gearing 42, 41 and sector rack and pinion gearing 10, the descent of a frame 3 having cross-bars 9 for engaging feet on racks 1. The cross-bars consequently draw all the racks 1 downwardly to their zero positions and the amounts standing on the racks are transmitted through the pinions 6, bevel wheels 55, 56 and pinions 11 to the wheels 12. These amounts can now be read on numbered flanges of the wheels, visible through openings 15. A crank 54 is next operated in order to shift the wheels 12 bodily out of engagement with the pinions 11 and into mesh with wheels 19, each of which bears a double series of numerals, red in one direction and black in the other, and tends to assume a normal or zero position by reason of a spring 20. The wheels 12 now project to some extent through arcuate slots 59 and can be differentially set in either direction to add or subtract an item the value of which can be read on the wheels 19 through openings 21. The crank 54 is again operated to return the wheels 12 to the position shown in Fig. 1 and during this movement the transfer mechanism becomes operative. For this purpose the cams 16 that produce the shifting of the arms 17 carrying the wheels 12, are arranged to act successively to effect transfer seriatim. The bail 14 is now returned to normal position so as through the lugs 45 and projections 44 to restore the wheels 12 to zero and as the wheels are now in mesh with the pinions 11 this resetting movement results in the new balance being transmitted to the racks 1. Finally the bar 70 is pushed in again to restore the racks to the vertical where they are held by the teeth 4.